Tracki Waterproof Magnetic Mini Box + 3500mAh Battery Extender is a Universal-only accessory for shoppers who want longer battery life, stronger outdoor protection, and magnetic vehicle placement. Slide the Tracki Universal tracker into the case, align the buttons with the groove, snap it shut, and place the magnet side down on a compatible metal surface. The added 3,500mAh battery can extend Universal use to about 3 weeks at 1-minute updates or up to 8 months in battery-save mode, depending on settings, movement, signal, and conditions. The IP67 waterproof design helps protect the tracker from rain, road splash, dust, and outdoor vehicle exposure, while the strong magnet supports undercarriage, frame, trailer, and equipment placement. Type-C to USB charging takes about 4–10 hours. Use this accessory when Universal’s compact tracker form is right for the job but the setup needs more battery, weather protection, and magnetic mounting. Compatible with Tracki Universal only; not compatible with Pro, Dog, or Cat trackers. Tracker and subscription are not included unless purchased as part of a bundle. | Third Party Marketplace 011 | Waterproof Magnetic Box & Battery Extender – for Tracki Universal GPS Tracker Only – 3500mAh IP67 Vehicle Case, S | Best Buy